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Possible cause:
—: Vehicle running ---: Indication
Drive condition Service procedure
Road
shapes
Y-intersection
SEL703V
In Y-intersections with a very
gradual change in course, a direc-
tional sensing may be inaccurate.
This may result in the position
marker giving the wrong road indica-
tion.
If the position marker does not
move to the correct position
even after the vehicle has been
driven approximately 10 km (6
miles), perform “Store place”. If
required, also perform
“ADJUST CURRENT LOCA-
TION” (EL-431).
Spiral road
SEL704V
On loop bridges and similar struc-
tures which result in a large and
continuous turn, turning angle may
be sensed inaccurately. As a result,
the position marker may separate
from the route on the map.
Straight road
SEL705V
In long distance driving on a straight
road or road with very gradual
curves, map marking inaccuracies
may occur. In such cases, the posi-
tion marker may stray from the route
being traveled during subsequent
turns due to inaccurate distance cal-
culation.
Winding road
SEL706V
Directional sensing precision errors
may occur when traveling on wind-
ing roads. During map matching, the
position marker may stray to an
adjacent road having a similar
shape. Subsequent position marker
error may occur.
Grid-like road shape
SEL707V
Directional sensing and distance
sensing, precision errors may occur
because of many roads having a
similar shape in the immediate area.
During map matching, the position
marker may stray to an adjacent
road having a similar shape. Subse-
quent position marker error may
occur.
Parallel roads
SEL708V
When driving on a parallel road,
map matching errors may occur.
Subsequent position marker error
may also occur.
NAVIGATION SYSTEM
This Condition is Not Abnormal (Cont’d)
EL-448
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